AMBIO

, Volume 40, Issue 7, pp 819–823 | Cite as

A Native Species with Invasive Behaviour in Coastal Dunes: Evidence for Progressing Decay and Homogenization of Habitat Types

  • Knud Erik Nielsen
  • Hans Jørgen Degn
  • Christian Damgaard
  • Marianne Bruus
  • Bettina Nygaard
Report

Abstract

A new species has recently invaded coastal dune ecosystems in North West Europe. The native and expansive inland grass, Deschampsia flexuosa, progressively dominating inland heaths, has recently invaded coastal dunes in Denmark, occasionally even as a dominant species. A total of 222 coastal locations with 5,000 random sample plots have been investigated. These findings are in contrast to historical records, and D. flexuosa has never been considered belonging to coastal dune ecosystems. The occurrence of the typical inland grass in the coastal dunes is a strong indication of increase in nutrient level and that human influences may cause a native species to be invasive in new ecosystems. This could be a radical example of change in species composition due to a long lasting exceedance of critical load of nitrogen. The investigation also showed a general increase in cover of the most dominant species.

Keywords

Eutrofication Habitat types Dunes, succession Pinpoint Critical load 

Notes

Acknowledgements

We are grateful to the Danish Nature Agencies for access to data from the Survey Programme of Terrestrial Nature.

References

  1. Aerts, R., and F. Berendse. 1988. The effect of increased nutrient availability on vegetation dynamics in wet heathlands. Vegetatio 76: 63–69.Google Scholar
  2. Bobbink, R., M.R. Ashmore, S. Braun, W. Flückiger, and I.J.J. van den Wyngaert. 2003. Empirical nitrogen critical loads for natural and semi-natural ecosystems: 2002 update. In Empirical critical loads for nitrogen, ed. B. Achermann, and R. Bobbink, 43–170. Berne: Swiss Agency for the Environment, Forests and Landscape.Google Scholar
  3. Bobbink, R., M. Hornung, and J.G.M. Roelofs. 1998. The effects of air-borne nitrogen pollutants on species diversity in natural and semi-natural European vegetation. Journal of Ecology 86: 717–738.CrossRefGoogle Scholar
  4. Bruus, M., Nielsen, K.E., Damgaard, C.F., Nygaard, B., Fredshavn, J.R., and R. Ejrnæs. 2010. Terrestriske Naturtyper 2008. NOVANA. Danmarks Miljøundersøgelser, Aarhus Universitet. Faglig rapport fra DMU nr. 765 (in Danish). http://www.dmu.dk/Pub/FR765.pdf.
  5. Böcher, T.W. 1937. Om udbredelsen af Ericaceae, Vacciniaceae og Empetraceae i Danmark. Botanisk Tidsskrift 44: 6–40.Google Scholar
  6. Christensen, S.N. 1989. Floristic and vegetational changes in a permanent plot in a Danish coastal dune heath. Annales Botanici Fennici 26: 389–397.Google Scholar
  7. Clemmensen, L.B., A. Murray, J. Heinemeier, and R. de Jong. 2008. The evolution of Holocen coastal dunefields, Jutland, Denmark: A record of climate change over the past 5000 years. Geomorphology 105: 303–313.CrossRefGoogle Scholar
  8. Damgaard, C., Nygaard, B., Ejrnæs, R., and J. Kollmann. in press. State-space modelling indicates rapid invasion of an alien shrub in coastal dunes. Journal of Coastal Research. doi: 10.2112/JCOASTRES-D-09-00132.1.
  9. Damgaard, C.F. 2009. On the distribution of plant abundance data. Ecological Informatics 4: 76–82.CrossRefGoogle Scholar
  10. DeSmidt, J.T., and P. van Ree. 1991. The decrease of bryophytes and lichens in Dutch heathlands since 1975. Acto Botanica Neerlandica 40: 379.Google Scholar
  11. Ellermann, T., Andersen, H.V., Bossi, R., Christensen, J., Løfstrøm, P., Monies, C., Grundahl, L., and C. Geels. 2010. Atmosfærisk deposition 2009. NOVANA. Danmarks Miljøundersøgelser, Aarhus Universitet. 95s. Faglig rapport fra DMU, nr. 801. http://www.dmu.dk/Pub/FR801.pdf.
  12. EUR 25 European Commission, D.E., Nature and Biodiversity. 2003. Interpretation manual of European Union habitats. Natura 2000 European Commission, Brussels.Google Scholar
  13. Gimingham, C.H. 1972. Ecology of heathlands. London: Chapman and Hall.Google Scholar
  14. Greven, H.C. 1992. Changes in the moss flora of the Netherlands. Biological Conservation 59: 133–137.CrossRefGoogle Scholar
  15. Heil, G.W., and W.H. Diemont. 1983. Raised nutrient levels change heathland into grassland. Vegetatio 53: 113–120.CrossRefGoogle Scholar
  16. Jones, M.L.M., H.L. Wallace, D. Norris, S.A. Brittain, S. Haria, R.E. Jones, P.M. Rhind, B.R. Reynolds, and B.A. Emmett. 2004. Changes in vegetation and soil characteristics in coastal sand dunes along a gradient of atmospheric nitrogen deposition. Plant Biology 6: 598–605.CrossRefGoogle Scholar
  17. Kent, A., and P. Coker. 1992. Vegetation description and analysis—a practical approach. London: Bellhaven Press.Google Scholar
  18. Ketner-Oostra, R., and K.V. Sykora. 2004. Decline of lichen-diversitly in calcium-poor coastal dune vegetation since the 1970s, related to grass and moss encroachment. Phytocoenologia 34: 521–549.CrossRefGoogle Scholar
  19. Ketner-Oostra, R., M.J. van der Peijl, and K.V. Sýkora. 2006. Restoration of lichen diversity in grass-dominated vegetation of coastal dunes after wildfire. Journal of Vegetation Science 17: 147–156.CrossRefGoogle Scholar
  20. Nielsen, K.E., B. Hansen, U.L. Ladekarl, and P. Nörnberg. 2000. Effects of N-deposition on ion trapping by B-horizons of Danish heathlands. Plant and Soil 223: 265–276.CrossRefGoogle Scholar
  21. Pedersen, A. 1974. Gramineernes udbredelse i Danmark [The distribution of the Gramineae within Denmark. Indigenous and Naturalized Species]. Botanisk Tidsskrift 68: 219–220.Google Scholar
  22. Remke, E., E. Brouwer, A. Kooijman, I. Blindow, H. Esselink, and J.G.M. Roelofs. 2009. Even low to medium nitrogen deposition impacts vegetation of dry, coastal dunes around the Baltic Sea. Environmental Pollution 157: 792–800.CrossRefGoogle Scholar
  23. Stevens, C.J., N.B. Dise, J.O. Mountford, and D.J. Gowing. 2004. Impact of nitrogen deposition on the species richness of grasslands. Science 303: 1876–1879.CrossRefGoogle Scholar
  24. Tomassen, H.B.M., A.J.P. Smolders, J. Limpens, L.P.M. Lamers, and J.G.M. Roelofs. 2004. Expansion of invasive species on ombrotrophic bogs: desiccation or high N deposition? Journal of Applied Ecology 41: 139–150.CrossRefGoogle Scholar
  25. Veer, M.A.C., and A.M. Kooijman. 1997. Nitrogen availability in relation to vegetation changes resulting from grass-encroachment in Dutch dry dunes. Plant and Soil 192: 119–128.CrossRefGoogle Scholar
  26. von Oheimb, G., S. Power, K. Falk, U. Friedrich, A. Mohamed, A. Krug, N. Boschatzke, and W. Härdtle. 2010. N:P ratio and the nature of nutrient limitation in calluna-dominated heathlands. Ecosystems 13: 317–327.CrossRefGoogle Scholar
  27. Warming, E. 1909. Dansk Plantevækst. 2. Klitterne. Gyldendalske Boghandel, Nordisk Boghandel, København og Kristiania.Google Scholar

Copyright information

© Royal Swedish Academy of Sciences 2011

Authors and Affiliations

  • Knud Erik Nielsen
    • 1
  • Hans Jørgen Degn
    • 2
  • Christian Damgaard
    • 1
  • Marianne Bruus
    • 1
  • Bettina Nygaard
    • 3
  1. 1.Department of Terrestrial EcologyNational Environmental Research InstituteSilkeborgDenmark
  2. 2.Degn’s Nature ConsultRingkøbingDenmark
  3. 3.Department of Biodiversity and WildlifeNational Environmental Research InstituteSilkeborgDenmark

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